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densk [106]
3 years ago
11

HELP QUICK Remove grouping symbols and combine like terms. 4a2 - 3[2b - 3b(b - 1)]

Mathematics
2 answers:
kvasek [131]3 years ago
8 0
Answer:
4a^2 - 15b + 9b^2

Step by step explanation:
makkiz [27]3 years ago
3 0

Answer:

4a^{2}  + 9b^{2}  + 3b

Step-by-step explanation:

Distributive Property

4a^2 - 3(2b - 3b^{2}   +  3b)

Distributive Property

{4a}^{2}  - 6b  + 9b^{2}  + 9b

Combine Like Terms

4a^{2}  + 9b^{2}  + 3b

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John runs a computer software store. Yesterday he counted 127 people who walked by his store, 58 of whom came into the store. Of
skelet666 [1.2K]
So probabilities are defined as "what we want to happen" divided by "all of the options".  127 is all the people who walked by.  25 is all of the people who did what we want.  So, 25/127 = .1969 or 19.69%.

Strangely, one could ponder this question in another way.  One could first get the probability that they walk in (58/127) and then multiply it by the probability that they buy something (25/58).  This turns out to give you the same answer.
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3 years ago
Is this correct? Lots of points
lisov135 [29]
Yes the answer is A. Good job!!!

6 0
4 years ago
Read 2 more answers
5.
faltersainse [42]

Answer:

45

Step-by-step explanation:

Let us assume the Bags of oranges be x

Now the cost price is 2500x

Sale price N = 90,000

Loss =20%

As we know that

Cost price= selling price × 100/ 100-percentage loss

= 90,000 ×  100/ 100- 20

= 90,000 ×  100 /80

Cost price= 112,500

Now

The Number of bags of oranges is

= 112,500 ÷ 2500

= 45

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3 years ago
Work out the equation of the line which passes through the point (-1, 2) and is paralell to the line y = x + 4
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Step-by-step explanation:

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